EP3755609A1 - Mobiler roboter sowie verfahren zum ausführen einer laufbewegung - Google Patents
Mobiler roboter sowie verfahren zum ausführen einer laufbewegungInfo
- Publication number
- EP3755609A1 EP3755609A1 EP19707712.6A EP19707712A EP3755609A1 EP 3755609 A1 EP3755609 A1 EP 3755609A1 EP 19707712 A EP19707712 A EP 19707712A EP 3755609 A1 EP3755609 A1 EP 3755609A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- leg
- segment
- mobile robot
- drive
- foot
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
- B25J19/00—Accessories fitted to manipulators, e.g. for monitoring, for viewing; Safety devices combined with or specially adapted for use in connection with manipulators
- B25J19/0091—Shock absorbers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
- B25J19/00—Accessories fitted to manipulators, e.g. for monitoring, for viewing; Safety devices combined with or specially adapted for use in connection with manipulators
- B25J19/0008—Balancing devices
- B25J19/002—Balancing devices using counterweights
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
- B25J19/00—Accessories fitted to manipulators, e.g. for monitoring, for viewing; Safety devices combined with or specially adapted for use in connection with manipulators
- B25J19/02—Sensing devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
- B25J9/00—Programme-controlled manipulators
- B25J9/10—Programme-controlled manipulators characterised by positioning means for manipulator elements
- B25J9/104—Programme-controlled manipulators characterised by positioning means for manipulator elements with cables, chains or ribbons
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D57/00—Vehicles characterised by having other propulsion or other ground- engaging means than wheels or endless track, alone or in addition to wheels or endless track
- B62D57/02—Vehicles characterised by having other propulsion or other ground- engaging means than wheels or endless track, alone or in addition to wheels or endless track with ground-engaging propulsion means, e.g. walking members
- B62D57/032—Vehicles characterised by having other propulsion or other ground- engaging means than wheels or endless track, alone or in addition to wheels or endless track with ground-engaging propulsion means, e.g. walking members with alternately or sequentially lifted supporting base and legs; with alternately or sequentially lifted feet or skid
Definitions
- the present invention relates to a mobile robot with which in particular running and / or jumping movements of
- the invention also relates to a method for carrying out a running movement with such a robot.
- the walking robot "ASIMO" of the manufacturer Honda, the walking robot “ATLAS” of the manufacturer Boston Dynamics and the walking robot “NAO” of the manufacturer Soft Bank Robotics are based on active rigid body mechanisms.
- the running robot "OutRunner” of the manufacturer Robotics Unlimited Inc. has star-shaped legs, which for
- the running robot "CASSIE” of the manufacturer Agility Robotics is based on naturally known movement principles.
- Andrada E . "On vision in birds: coordination of head-bobbing and gait stabilizes vertical head position in quail” in Fron tiers in Zoology, Issue 11 (1), 27, 2014; in the article by Andrada, E. et al .: "Adjustments of global and local hindlimb properties during the terrestrial locomotion of the common quail” (Coturnix coturnix) in JEx Biol, Issue 216, pages 3906-3916; in the article by Andrada, E. et al. : "Grounded running in quails: simulation indicating benefits of observed fixed aperture between angles before legs-down-touch" in J Theor Biol, Issue 335, pp. 97-107, 2013 and in the
- US 6,779,621 B2 shows a method for stabilizing a balancing transporter having two wheels arranged on a common axis.
- CN 107539385 A shows a leg of a robot which has a torso part, an upper leg segment, a lower one
- leg segment and a foot.
- the upper leg segment is pivotable relative to the trunk.
- the lower leg segment is stretchable relative to the upper leg segment.
- the CN 107554641 A and the CN 205150021 U show robot legs, which are modeled on the legs of birds.
- the object of the present invention starting from the prior art is to be able to better mimic the known from nature running and jumping movements of animals, especially birds, by technical means.
- Said object is achieved by a mobile robot according to the attached claim 1.
- the said object is further achieved by a method according to the attached independent claim 14.
- the invention initially shows a leg arrangement.
- Leg assembly is intended for a mobile robot and forms a separate functional unit with which
- Feed movements preferably running and / or
- the leg assembly includes at least one leg and one
- the leg supports the torso and includes an upper leg segment and a lower leg segment.
- the upper leg segment and the lower leg segment are through a middle joint
- the upper leg segment and the lower leg segment are stretched to each other by a stretching drive on the middle joint bar, so that the pivotal movement between the upper Beinseg management and the lower leg segment can be actuated and controlled.
- the upper leg segment is mounted in a trunk joint on the body part, so that the upper leg segment can be swung forwards and backwards in at least one direction of travel.
- the upper leg segment is swingable with a leg vibration drive against the body part in the running direction, so that the oscillating movement of the leg relative to the body part in the running direction can be actuated and controlled.
- the fuselage joint is displaceable with respect to the body part with a karin drive Beinein.
- the trunk joint is in particular in a vertical direction relative to the body part with the leg retracting drive up and down slidably.
- the trunk joint and attached leg can be retracted towards the trunk.
- the trunk joint and attached leg can be moved away from the trunk.
- the upper leg segment can be shortened with respect to the trunk joint via a spring-damper unit by a force acting between the upper leg segment and the trunk joint force.
- the upper leg segment can be shortened, in particular in the longitudinal direction of the upper leg segment. This shortening of the upper leg segment Mentes acts against the spring-damper unit, so that in a disappearance of the between the upper leg segment and the
- the leg has on the lower leg segment a foot extending in an area, so that the foot can stand on a floor over at least three contact points that are not together on a straight line.
- the foot thus extends in a state in a plane parallel to the ground.
- leg assembly allows the realization of a bird-like running system, which is due to the combination of the leg swing drive, the leg retracting drive and the shortenability of the upper
- leg segment opposite the trunk joint on the spring-damper unit is possible.
- the leg assembly allows a large range of stability with minimal control effort. It requires a lower energy requirement for locomotion compared to robots based on actuated rigid body running systems.
- the upper leg segment is one with a twist-and-turn drive
- the leg segment may thus be rotated about the longitudinal axis of the upper leg segment with respect to the torso portion and the trunk joint. This rotation can be actuated and controlled by the Berichhungsantrieb. This rotation also rotates the lower leg segment and the foot with respect to the torso part.
- the maximum angle of rotation is preferably ⁇ 90 ° and more preferably ⁇ 45 °.
- the Bewearhungsantrieb before given to a sensor for measuring the rotational position of the upper Leg segment.
- the sensor for the measurement of the rotational position is preferably gebil det by an encoder with a zero encoder.
- the Bewearhungsantrieb is preferred to the position and
- the foot is attached to the lower leg segment via an ankle.
- the foot in the ankle is rotatable about an axis parallel in the direction of rotation of the central joint and an axis rotated 90 ° relative to the lower foot segment.
- the foot preferably has at least three mutually remote ground contact points that span a plane that forms the surface of the extension of the foot.
- the foot can stand in the three ground contact points on the ground, so that the entire leg assembly and possibly other coupled assemblies are in the three ground contact points on the ground.
- One of the ground contact points is preferably arranged in relation to the running direction behind the ankle. In this case, this ground contact point is preferably arranged on a aligned in the running direction Rich and the leg longitudinal axis intersecting straight.
- Two more of the ground contact points are preferably arranged in relation to the running direction in front of the ankle. In this case, these two ground contact points are preferably arranged both sides of the aligned in the direction and the leg longitudinal axis intersecting straight.
- the foot preferably has exactly these three ground contact points.
- the ground contact points are preferably dome-shaped.
- the ground contact points are preferably made of an elastic material.
- a force sensor unit is preferably arranged, with which force variables such as forces and moments on the foot, in particular special in the ground contact points are measurable.
- the force magnitude sensor unit preferably comprises three force sensor elements which are each arranged at one of the three ground contact points. In particular, the forces and moments retroactive from the ground to the foot can be measured with the force-magnitude sensor unit.
- the foot is opposite the lower leg segment with a first one
- the foot is opposed to the lower leg segment with a second one
- Foot actuator rotatable about an axis which is aligned in the longitudinal direction of the foot. This rotation axis is called
- This rotation can be actuated and controlled by the second foot actuator. This rotation leads to an inward and outward tilting of the foot relative to the lower leg segment in analogy to supination and
- Preferred embodiments of the leg assembly include a sensor with which at least one angle between the foot and the lower leg segment is measurable.
- the at least one angle is preferably an angle which describes the rotation of the foot about the transverse axis of the foot, and / or an angle which determines the rotation of the foot about the foot
- the reader With the sensor at least one of three components of a mathematical description of a difference of spatial angular positions of the respective foot can be measured.
- the components of the mathematical description of the difference of the spatial angular positions of the respective foot are the rotational components of poses of the respective foot.
- two or more preferably three of the three components of the mathematical description of the difference of the spatial angular positions of the respective foot can be measured.
- an inertial sensor is preferably arranged, with which the position and orientation, ie. H. the pose of the foot in the room is measurable.
- the inertial sensor is preferably designed for measuring the position of the foot in all three spatial directions and rela tive orientation of the foot about the axes of all three spatial directions with respect to a center body on it tiche coordinate system whose pose can be determined by an inertial sensor located there.
- the extension drive includes a return spring acting between the upper leg segment and the lower leg segment and a cable.
- the return spring is preferably designed to bend the upper leg segment and the lower leg segment to one another.
- a force can be applied to the upper leg segment and the lower leg segment over the
- the cable preferably comprises a pull rope, which is guided on a disk segment.
- On End of the traction cable is preferably mounted on the disc segment.
- the disk segment is rotatably connected in the middle joint with one of the two leg segments; preferably with the lower leg segment.
- the disk segment is preferably designed as a cam segment.
- the stretch drive preferably further comprises a Seilzugan drive for applying the traction cable with a tensile force.
- the cable drive is preferably arranged on the body part.
- the cable drive preferably comprises an electric motor and a traction mechanism.
- the cable drive is preferably position adjustable.
- the pull rope is between the fuselage part and the
- the middle joint is preferably guided in a cable housing, so that the pull rope and the cable housing form a Bowden cable.
- the upper leg segment is pivotable about the longitudinal axis of the upper leg segment with a leg pivot drive.
- the upper leg segment is thus pivotable to the side outward and inward. This pivotal movement is through the leg
- Pivoting drive can be actuated and controlled.
- the Beinschwen kungsantrieb preferably comprises an electric motor with a transmission and a measuring system for detecting the rotational position.
- the leg pivot drive is preferably positionally adjustable. Since the upper leg segment is pivotable with the leg pivot drive about the longitudinal axis of the upper leg segment, and the entire leg is pivotable about this axis to the side. This pivoting movement can take place with respect to the body part. Alternatively, this pivoting movement may alternatively also take place together with the body part, so that the body part is pivoted directly, as a result of which the leg suspended on the body part is likewise pivoted.
- the leg swing drive includes a belt drive with a driving pulley and a driven one
- the driving pulley is with a
- the driven belt sprocket is rotatably connected in the trunk joint with the upper leg segment.
- a belt preferably by a toothed belt
- the leg vibration drive is preferably torque and position adjustable.
- the electric motor preferably comprises a rotary gear and preferably an encoder for position detection.
- At the driven pulley is preferably a sensor for measuring the angle of rotation of the
- the sensor is preferably formed by a zero-point or absolute rotation sensor.
- the leg retracting drive includes a torso-hinge bearing
- Lever arm which is pivotable with a lever mechanism of the leg retracting drive relative to the fuselage part. Since the lever arm carries the trunk joint, it also carries the upper leg segment.
- the lever mechanism preferably comprises a spindle gear and a sliding from the spindle drive drive lever, so that the
- the toggle is preferably self-locking.
- Spindle drive preferably comprises a zero point sensor and preferably an electric motor with an encoder for position control.
- a distance measuring system is arranged on the upper leg segment, with which the shortening of the upper leg segment acting on the spring-damper unit relative to the trunk joint can be measured.
- the upper leg segment preferably comprises a guide part and a displacement part.
- the displacement part is guided linearly in the guide part.
- This linear guide is aligned in the leg longitudinal direction.
- the guide part is preferably mounted in the trunk joint.
- the guide part is preferably seated on the driven pulley.
- the spring-damper unit is preferably clamped between the guide part and the displacement part.
- the spring-damper unit act at least one spring and at least one damper in parallel.
- the spring-damper unit preferably comprises at least one spring damper.
- Spring damper is an integral unit of the spring and the damper, with the spring and the damper having a common longitudinal axis.
- the spring-damper unit preferably comprises at least two of the spring damper.
- the at least two spring damper are preferably parallel zueinan arranged.
- the spring-damper unit is preferably designed to be interchangeable in the leg assembly, so that the spring-damper unit can be exchanged against a spring-damper unit with a different spring stiffness and / or other damping.
- the spring damper unit comprises the spring damper and a further spring, which is mechanically connected in series with the spring damper.
- the ankle is formed by an elastic flexure. The bending joint can be deflected at least in one direction or preferably in two directions, so that the foot is pivotable relative to the lower leg segment.
- the first whostellantrieb preferably comprises a remindstellfe the, which may also be formed by the elastic bending joint itself or complements the elastic bending joint.
- the return spring is preferably formed by a coil spring, by an elastic polymer segment or by a coupling mechanism with spring action.
- the return spring in the ankle is preferably designed to stretch the ankle, d. H. to pivot the foot about the solicitquersachse in a rotational direction relative to the lower leg segment.
- the first tillstellantrieb preferably further comprises a first caringstellseilzug, wherein a pull rope of the first effetstellseilzu is secured via a first lever on the foot. A force can be applied over the first foot control cable to flex the ankle, i. H. to pivot the foot about the solicitquersachse in a rotational direction relative to the lower leg segment.
- the first foot actuator preferably further includes a first caringstellseilzugantrieb for acting on the pull cable of the first helpingstellantriebes with a tensile force.
- the first caringstellseilzugantrieb is preferably arranged on the body part is.
- the first caringstellseilzugantrieb preferably comprises an electric motor and a traction mechanism.
- the whostellseilzugantrieb preferably includes an encoder for position control.
- the first contributingstellseilzugantrieb is before granted position adjustable.
- the traction cable of the first contributingrie bes is preferably performed in a Switzerlandhülle between the body part and the ankle, so that the pull rope and the outer casing train a Bowden cable.
- the first foot actuator is preferably self-locking.
- the second whostellantrieb preferably comprises a remindstellfe the, which may also be formed by the elastic bending joint itself or complements the elastic bending joint.
- the return spring is preferably formed by a coil spring, by an elastic polymer segment or by a coupling mechanism with spring action.
- the return spring is preferably designed to tilt the foot outwards relative to the lower leg segment, i. H. in analogy with Termologia anatomica, to pronate the foot.
- the second approaching a pull rope of the second effetstellseilzuges is attached via a second lever on the foot. A force can be applied via the second foot control cable to tilt the foot inwardly relative to the lower leg segment, i. H.
- the second whostellantrieb preferably further comprises a second effetstellseilzugantrieb for acting on the traction cable of the second effetstellantriebes with a tensile force.
- the second responsible herein is preferably arranged on the body part.
- the second responsible herein preferably comprises an electric motor and a traction mechanism.
- the second skilled herein preferably comprises an encoder for position control.
- the second responsible hereinafter is preferably position adjustable.
- the traction cable of the second effets is preferably guided in a Switzerlandhülle between the body part and the ankle, so that the pull rope and the
- the second foot actuator is preferably self-locking.
- the upper leg segment and / or the lower leg segment are each divided into subsegments.
- the subsegments are each connected to one another by an intermediate joint and can be adjusted to one another by an intermediate drive.
- the intermediate joint and the intermediate drive preferably have the same features as the middle joint and the linear drive and their preferred embodiments.
- the extension drive, the leg oscillation drive, the leg drive and possibly the Bewearhungsantrieb, theticianstellantriebe and / or the Beinschwenkungsantrieb preferably also include pneumatic and / or hydraulic elements for force and / or torque generation and / or movement and force or torque transmission ,
- an inertial sensor for determining the position of the leg pose is arranged on the body part.
- the leg arrangement preferably comprises an accumulator for supplying the actuators with electrical energy.
- the leg assembly preferably comprises an electronic
- Control unit for controlling or controlling the traction drive, the leg oscillation drive and the leg retracting drive.
- the accumulator is preferably also with the electronic
- Control unit connected to feed this.
- Electronic control unit is preferably connected to the inertial sensors, the force magnitude sensor units, the displacement measuring system and / or the other sensors to control the drives can.
- the mobile robot according to the invention is suitable for performing running and / or jumping movements.
- the mobile robot according to the invention is particularly suitable running and / or
- the mobile robot comprises at least two of the described leg arrangements.
- the legs of the leg assemblies together carry a central body of the mobile robot.
- Preferred embodiments of the mobile robot include preferred embodiments of the described leg assembly.
- the mobile robot also preferably has features described in connection with the leg assembly.
- the mobile robot preferably constitutes a leg-based movement system having self-stabilizing and energy-saving properties.
- the mobile robot may also include more than two of the leg assemblies.
- the inven tion proper mobile robot has a high degree of scalability, so that different size dimensions and Traglastei properties can be realized.
- the mobile robot according to the invention can realize different functions.
- the mobile robot can move forward and backward. In the state of motion, changes in the direction of movement can be realized.
- the mobile robot can assume a statically stable position and return to the state of motion.
- the movements of the mobile robot can be carried out smoothly and without jerking.
- the mobile robot By coupling additional communication, control and sensor units, the mobile robot is capable of remote-controlled, semi-autonomous or autonomous movement. to carry out.
- the mobile robot is capable of one
- the mobile robot requires only a small energy requirement.
- the two-legged mobile robot is similar in operation to the appearance of walking and running in birds. When equipped with four leg assemblies, the mobile robot is similar in operation to the appearance of walking and running in four-legged mammals.
- the mobile robot according to the invention represents a technical implementation of a basic biomechanical principle for sauchu nige running on the model of birds.
- the basic principle allows a stable leadership of a body with low energy consumption, high stability, low self-weight and low control effort.
- the invention made light a reduction in the number of joint drives to a minimum.
- a central body is preferably arranged.
- the mobile robot preferably comprises exactly two of the
- the mobile robot includes four or more of the described leg assemblies.
- a movable compensator mass is arranged in the central body, the drive with a first Kompensatormassenstell displaced in the longitudinal direction of the central body is and which is displaceable with a second Kompensatormassenstellantrieb in the transverse direction of the central body.
- the compensator mass can be adjusted in two directions relative to the central body.
- the two Kompor satormassenstellantriebe are preferably each positionre gelbar.
- the two mass actuators preferably each comprise an electric motor, an encoder and a zero
- the electronic control unit is preferably connected to the Kompensatormassenstellantrieben to these steu ern can.
- the body parts of the leg assemblies are each with the leg pivoting drives about the longitudinal axis of the leg
- Pivotable central body By this pivoting movement of the respective body part and attached to the body part leg is pivoted.
- the body parts are preferably pivotable about a paral lel to the longitudinal axis of the central body axis on the cent ral body.
- the mobile robot according to the invention preferably further comprises at least one robot arm for the transport, handling and / or manipulation of objects.
- the mobile robot can be used to perform service and inspection activities.
- the mobile robot preferably further comprises sensors for environmental detection, so that it can also be used for reconnaissance.
- the mobile robot preferably further comprises a communication system for communicating with other machines and / or with humans.
- the communication system allows the remote control of the mobile robot and / or the transmission of sensor data to a remote machine and / or to a remote person.
- the communication system is preferred for wireless data transmission. training and / or for visual, acoustic and / or body language communication.
- the mobile robot according to the invention preferably comprises a casing, which encloses the central body with the body parts, the legs and possibly the at least one robot arm, as well as others
- Robot body parts encloses.
- the shell is preferably formed elas table so as not to hinder the movements of the walking robot.
- the shell preferably has design elements that support interaction with humans.
- the sheath preferably recreates a character, a character, and / or a shape to aid interaction with humans.
- the mobile robot according to the invention is preferably also designed for movement in gaseous or liquid media, for which purpose buoyancy-generating components are added.
- the mobile robot preferably further comprises special buoyancy bodies, which generate a buoyancy with respect to the surrounding medium.
- Further means for generating buoyancy forces and forces for generating a spatial movement may be in the form of a system of propellers or nozzles.
- the inventive method is used to carry out a running movement with the described leg assembly or with the mobile robot according to the invention.
- the stretching drive, the leg oscillation drive and the leg zugsantrieb the respective leg assembly are controlled so that a force acting on a bottom of the leg assembly basically acts in the direction of resting with the respective body portion point.
- This point resting on the body part is also called a virtual pivot point.
- the retroactive from the ground on the leg assembly forces each have one Wirkline on the invention always pierce the virtual-Pivoting- point.
- the actuating drive, the leg oscillation drive and the leg retraction drive generate such setting torques that the action lines of the forces acting on the leg arrangement from the bottom are always the virtual Pivoting point pierced.
- damping are generated by the stretching drive, the leg vibration drive and the leg retracting drive and the Bewearhungsantrieb, the effetstellantriebe and / or the leg pivot drive of the respective leg assembly such Stell moments in that the lines of action of the forces acting on the leg assembly from the ground in each case always pierce the virtual pivot point.
- the inventive method for carrying out a running movement with the mobile robot according to the invention is formed.
- the two legs are preferably loaded alternately, being driven in a swing phase of each leg not legas the leg retraction drive of each leg not loaded th so that this leg is pulled in the direction of the respective body part.
- the extensor drove the respectively unloaded leg so controlled that the middle joint of this leg is buckled.
- FIG. 1 shows a preferred embodiment of a leg arrangement of a robot according to the invention in a perspective view
- Fig. 2 the leg assembly shown in Figure 1 in a mallli chen view.
- FIG. 3 shows a foot of the leg arrangement shown in FIG. 1;
- FIG. 4 shows a preferred embodiment of an inventive Shen mobile robot.
- Fig. 5 the mobile robot shown in Figure 4 in a wide Ren position.
- Fig. 6 a central body with a compensation mass
- Fig. 7 a mechanical to be realized according to the invention
- Fig. 1 shows a preferred embodiment of a
- the leg assembly includes a torso portion 01 and a leg 02 movably attached thereto.
- the leg 02 includes an upper leg segment 03 and a lower leg segment 04 which are interconnected and extensible with each other via a center joint 06.
- the upper leg segment 03 is suspended on two spring dampers 07, which in turn are attached to a driven pulley 08. Since the driven pulley 08 is mounted in a rotary bearing (not shown) in the body part 01, the leg 02 can be swung forward and backward by rotation of the driven pulley 08, so that the rotary bearing (not shown) forms a trunk joint.
- the top The top
- Shock absorbers 07 are shortened with respect to the trunk joint formed by the rotary bearing (not shown).
- the driven pulley 08 forms a belt transmission with a belt 09 and a driving pulley (not shown) which is drivable by an electric motor 11.
- the electric motor 11 and the disc driven by the driven pulley 08, the belt 09 and the driving pulley (not shown) formed belt transmissions are arranged on a lever arm 12, which is rotatably mounted in a Hebelarmlagerung 13 in the fuselage part 01, so that it can be swung up and down.
- the torso joint formed by the rotary bearing (not shown) and thus also the leg 02 are shifted upwards or downwards relative to the torso part 01, so that the leg 02 moves in relative to the torso part 01.
- a drive lever 14 the drive by a Spindelan 16 (shown completely in Fig. 2) is driven.
- the upper leg segment 03 is rotatable about its longitudinal axis.
- An electric Bewearhungsantrieb 17 allows rotation of the upper leg segment 03 about its longitudinal axis with respect to the body part 01st
- the center joint 06 is stretchable and diffractable by means of a stretching drive 18.
- the stretch drive 18 includes an electric cable drive 19, which is taken on the body part 01 fastened and a Bowden cable 21 beaufschla conditions with a tensile force can.
- the Bowden cable 21 extends to the center joint 06 and includes a pull cable 22, which element 23 is guided on a Kurvenusionnseg.
- the cam segment 23 converts the tensile force of the pull cable 22 into a torque which acts on the lower leg segment 04, since the cam segment 23 in the middle joint 06 is non-rotatably connected to the lower leg segment 04.
- the lower leg segment 04 opens at its lower end into an elastic ankle 24, in which a foot 26 is mounted.
- the ankle 24 allows rotation of the foot 26 about a doubllteilsachse.
- the ankle 24 also allows rotation of the foot 26 about a transverse axis of the foot.
- the rotation of the foot 26 in the researchingquersachse, is with a firstticianstellantrieb 27th
- the first foot actuator 27 includes a first effettellseilzugantrieb 28 for applying a first
- the Bowden cable 29 with a pulling force.
- the first Bowden cable 29 opens into a Bowden cable suspension 31 at the ankle 24.
- the tensile force of the first Bowden cable 29 acts on the Bowden cable suspension 31 as torque on the foot 26 to rotate it about the solicitquersachse.
- the rotation of the foot 26 in the submittedlteilsachse can be actuated with a second foot actuator 32.
- the secondticianstellan drive 32 includes a second effetstellseilzugantrieb 33 for applying a second Bowden cable 34 with a tensile force.
- the second Bowden cable 34 opens into the Bowden cable suspension 31 at the ankle 24.
- the tensile force of the second Bowden cable 34 acts via the Bowden cable suspension 31 as torque on the foot 26 to rotate it about theticianlticiansachse.
- the foot 26 has three ground contact points 36, 37, 38, which are distributed over a surface.
- the first ground contact point 36 is based on the direction behind the ankle 24.
- the second ground contact point 37 and the third ground contact point 38 are based on the running direction Rich in front of the ankle 24 and have in one direction perpendicular to the right direction at a distance from each other.
- Fig. 2 shows the leg assembly shown in Fig. 1 in a side view. In this illustration, in particular, the spindle drive 16 is shown.
- Fig. 3 shows the foot 26 shown in Fig. 1 in a detail representation.
- Fig. 4 shows a preferred embodiment of a fiction, contemporary mobile robot.
- the mobile robot comprises two of the leg arrangements shown in FIG. 1, which are mirror-symmetrical to one another.
- the two body parts 01 of the two leg assemblies together with a Monegan by 41 a base body of the mobile robot, wherein on the body and functional elements, such as Robo terarme (not shown) may be arranged.
- the central body 41 comprises a Kompensatormasse 42.
- the Kompensatormasse 42 can be moved with a first Kompensatormassen actuator 43 in the longitudinal direction of the central body.
- the first Kompensatormassenstellantrieb 43 is designed as an electric spindle drive.
- Kompensatormasse 42 can be moved with a second Kompensatormassen actuator 44 in the transverse direction of the central body.
- the second compensator mass actuator 44 is designed as an electric belt drive.
- the central body 41 further comprises a left leg pivoting drive 46, with which the body portion 01 of the left leg assembly can be pivoted to the side, d. H. can be rotated about an axis lying in the direction of rotation.
- the central body 41 further comprises a right Beinschwen kungsantrieb 47, with which the body part 01 of the right leg assembly can be swung to the side, d. H. can be rotated about an axis lying in the direction of rotation.
- FIG. 5 shows the running robot shown in FIG. 4 in a further position.
- the torso portion 01 of the right leg assembly is pivoted sideways, which can be achieved by manually decoupling the right leg pivot drive 46.
- Fig. 6 shows the central body 41 shown in Fig. 4 with the Kompensatormasse 42 and the two Kompensatormassenstellan drives 43, 44 in detail. In this illustration, the two leg pivot drives 46, 47 are shown.
- Fig. 7 shows a mechanical replacement model of a running bird. This mechanical replacement model is mimicked according to the invention with the mobile robot shown in FIG. 4.
- a center of gravity 51 of a spatially extended mass of the body of the bird corresponds to a center of gravity of the massively expanded mass of the body comprising the body 01, the legs 02, the feet 26 and the central body 41 of the mobile robot shown in FIG.
- a trunk joint 52 swing two legs 53, which have a length io and to a bottom 54 at an angle.
- the trunk joint 52 has a center of gravity 51 of the mass at a distance r h . This distance r h lies in a straight line which has an angle Q to the vertical.
- Between the legs 53 is a
- the legs 53 in the mechanical replacement model each include a spring-damper system 56, which is shown in FIG.
- Spring damper 07 corresponds.
- the spring-damper system 56 describes a serial leg stiffness ki, a parallel leg stiffness k2, and a cushioning c.
- a virtual-pivot point 57 is located at a distance r Vpp above the center of gravity 51 of the mass. According to the model of nature, the movements of the in 4 are so controlled that during running the forces 58 acting on the legs 53 (01 in FIG. 4) from the bottom 54 are always directed to the virtual-pivoting point 57, so that lines of action of these forces 58 den
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
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Abstract
Description
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Application Number | Priority Date | Filing Date | Title |
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DE102018103892.5A DE102018103892B4 (de) | 2018-02-21 | 2018-02-21 | Mobiler Roboter und Beinanordnung hierfür sowie Verfahren zum Ausführen einer Laufbewegung |
PCT/EP2019/053405 WO2019162144A1 (de) | 2018-02-21 | 2019-02-12 | Mobiler roboter sowie verfahren zum ausführen einer laufbewegung |
Publications (2)
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EP3755609A1 true EP3755609A1 (de) | 2020-12-30 |
EP3755609B1 EP3755609B1 (de) | 2021-09-15 |
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EP19707712.6A Active EP3755609B1 (de) | 2018-02-21 | 2019-02-12 | Mobiler roboter sowie verfahren zum ausführen einer laufbewegung |
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EP (1) | EP3755609B1 (de) |
DE (1) | DE102018103892B4 (de) |
WO (1) | WO2019162144A1 (de) |
Families Citing this family (13)
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JP7456856B2 (ja) * | 2019-10-11 | 2024-03-27 | 本田技研工業株式会社 | 構造体の設計方法 |
CN112319647B (zh) * | 2020-11-06 | 2023-10-03 | 华南理工大学广州学院 | 一种多杆四足机器人 |
CN113184170B (zh) * | 2020-12-10 | 2022-08-30 | 西北工业大学 | 一种扑翼飞行器 |
CN113184171B (zh) * | 2020-12-10 | 2022-08-30 | 西北工业大学 | 一种扑翼飞行器用仿生弹跳装置 |
CN112623062B (zh) * | 2021-01-06 | 2022-03-29 | 中国铁建重工集团股份有限公司 | 一种行走底盘及工程机械 |
CN112959357B (zh) * | 2021-02-05 | 2021-09-28 | 重庆工程职业技术学院 | 一种行走机器人用减震机构 |
CN113443040A (zh) * | 2021-05-18 | 2021-09-28 | 山河智能装备股份有限公司 | 一种轮腿复合式行驶系统、机动平台及其行走方法 |
CN113635345A (zh) * | 2021-08-18 | 2021-11-12 | 青岛新一代人工智能技术研究院 | 机械臂及机器人 |
CN113619705A (zh) * | 2021-08-18 | 2021-11-09 | 青岛新一代人工智能技术研究院 | 机械装置 |
CN114211510B (zh) * | 2022-01-27 | 2024-01-19 | 吉林大学 | 一种仿生刚性冲击式不倒翁跳跃机器人及其跳跃方法 |
CN115056036B (zh) * | 2022-07-13 | 2024-05-07 | 浙江金火科技实业有限公司 | 一种数控车床上主轴箱部件检测装置 |
CN115195901B (zh) * | 2022-08-30 | 2023-06-20 | 上海大学 | 一种钢筋绑扎机器人及其移动底盘 |
CN117068293B (zh) * | 2023-10-16 | 2024-01-16 | 太原理工大学 | 一种双足仿生跳跃机器人 |
Family Cites Families (11)
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US6779621B2 (en) | 1993-02-24 | 2004-08-24 | Deka Products Limited Partnership | Riderless stabilization of a balancing transporter |
JP3435666B2 (ja) * | 1999-09-07 | 2003-08-11 | ソニー株式会社 | ロボット |
US7703562B2 (en) * | 2007-05-25 | 2010-04-27 | Toyota Motor Engineering & Manufacturing North America, Inc. | Energy efficient robotic system |
US8914151B2 (en) | 2011-07-05 | 2014-12-16 | The State Of Oregon Acting By And Through The State Board Of Higher Education On Behalf Of Oregon State University | Apparatus and method for legged locomotion integrating passive dynamics with active force control |
CN103625572B (zh) * | 2013-12-17 | 2015-12-02 | 哈尔滨工程大学 | 带有弹性四杆机构的四足机器人腿 |
CN204110199U (zh) * | 2014-09-05 | 2015-01-21 | 西南科技大学 | 一种运动装置及采用该装置的仿生机器人 |
US9789920B2 (en) | 2015-04-01 | 2017-10-17 | Oregon State University | Apparatus and method for energy regulation and leg control for spring-mass walking machine |
US10189519B2 (en) | 2015-05-29 | 2019-01-29 | Oregon State University | Leg configuration for spring-mass legged locomotion |
CN205150021U (zh) * | 2015-12-11 | 2016-04-13 | 吉林大学 | 仿鸵鸟后肢运动功能特性的节能步行腿机构 |
CN107539385B (zh) * | 2016-06-24 | 2019-11-12 | 沈阳新松机器人自动化股份有限公司 | 一种变阻尼柔性腿及其四足机器人 |
CN107554641B (zh) * | 2017-09-22 | 2023-08-04 | 山东大学 | 一种仿鸵鸟机器人行走机构 |
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2018
- 2018-02-21 DE DE102018103892.5A patent/DE102018103892B4/de active Active
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2019
- 2019-02-12 WO PCT/EP2019/053405 patent/WO2019162144A1/de unknown
- 2019-02-12 EP EP19707712.6A patent/EP3755609B1/de active Active
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WO2019162144A1 (de) | 2019-08-29 |
EP3755609B1 (de) | 2021-09-15 |
DE102018103892B4 (de) | 2021-02-04 |
DE102018103892A1 (de) | 2019-08-22 |
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